Abstract
The electrophoretic motion of a non-Brownian rigid sphere with an arbitrary particle charge distribution is studied. Utilizing the multipole expansion of the double-layer potential based on the linearized Poisson-Boltzmann equation, the electrophoretic motion is analyzed for a sphere with an arbitrary double-layer thickness. Only the monopole and quadrupole moments can contribute to the translational motion of the sphere, while only the dipole moment can result in rotational motion. Furthermore, the monopole moment contribution to the electrophoretic mobility exactly follows the classical expression of Henry. Simple relationships are derived for the multipole moments of the surface potential and the multipole moments of the particle charge distribution so that electrophoretic mobility data can be interpreted in terms of either set of moments.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
